Hi, On Tue, Dec 28, 2010 at 12:04:23PM +0100, Tobias Appel wrote: > Hi, > > I have purchased Dr. Schwartzkopff's latest book (in German) about > pacemaker. In his chapter about constraints he introduces the feature > resource_set which sounds pretty neat. It would safe me quite some lines > of configuration (for example I have like 40 individual resources which > all require to be started after LVM - so currently I have 40 extra order > constraints which I could fit into one using resource_set).
40 order constraints? A big cluster. > Though in his book he writes that this feature is quite new and might > still be buggy and thus not recommended for productive use - I don't > know though on which version of pacemaker he makes this assumption. > > Currently we use 1.1.2. At least in the GUI I don't see any option to > use resource_set within another constraint. Will the GUI still work if I > manually add the required XML code to the cib? Yes, the GUI should work. You can also use the crm shell to edit constraints. It should look sth like this: order o inf: lvm ( rsc1 rsc2 ... rscn ) providing that rsc1 ... rscn don't depend on each other. > And is this feature now safe to use? Should be. But the number of resources you want to put into the set is unusually large. Try this first on a test cluster. It is also possible to use several constraints: order o1 inf: lvm ( rsc1 rsc2 ... rscm ) order o2 inf: lvm ( rscm+1 rscm+2 ... ) ... > Thanks in advance and happy new year to everyone. Happy NY to you too. Thanks, Dejan > Bye, > Tobi > _______________________________________________ > Linux-HA mailing list > Linux-HA@lists.linux-ha.org > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
